I bought this saw for sawing quarters of aerated concrete, into window openings. I was glad that in addition there are two disks. I put out the line and away we go. It goes like clockwork. Moderately noisy. Comfortable to hold, rubberized handles. There is a nozzle for a vacuum cleaner, and the nozzle itself is a dust outlet, that is, when working without a vacuum cleaner, dust and sawdust do not fly into the face. The cut is even, does not twitch. As a result, 165 quarters in 40 minutes. I recommend to everyone. Addition: I changed the disk that the gas block was driving to a new one in order to work with wood. Believe it or not, when I started sawing the board (50x120), I first thought that I had lost the disc, or the board was made of vanilla ice cream. That's in the full sense, like clockwork. Even the sound of the saw did not change, it just slid from the beginning of the board to the end. I even have a Negro Word Undear. Now I recommend even more.